fix(watcher): stabilize daemon readiness and tests

src/daemon.ts

@@ -104,7 +104,7 @@ async function getOrCreateEntry(
     entries.delete(key);
     throw err;
   }
-  attachWatcher(entry);
+  await attachWatcher(entry);
   bumpIdle(entry);
   return entry;
 }
@@ -113,9 +113,9 @@ async function getOrCreateEntry(
 // The first non-empty registration lazily creates the WorkspaceWatcher;
 // subsequent register/unregister calls update its pattern set in place.
 // Honors PI_LSP_DISABLE_WATCHERS for emergency rollback.
-function attachWatcher(entry: ClientEntry): void {
+async function attachWatcher(entry: ClientEntry): Promise<void> {
   if (process.env.PI_LSP_DISABLE_WATCHERS) return;
-  const sync = () => {
+  const sync = async () => {
     const patterns = entry.client.getFileWatchers();
     if (patterns.length === 0 && !entry.watcher) return;
     if (!entry.watcher) {
@@ -128,11 +128,13 @@ function attachWatcher(entry: ClientEntry): void {
       log(`watcher patterns`, entry.server.id, JSON.stringify(patterns));
     }
     entry.watcher.setPatterns(patterns);
+    if (patterns.length > 0) await entry.watcher.ready();
   };
-  entry.unsubscribeWatchers = entry.client.onWatchersChanged(sync);
+  entry.unsubscribeWatchers = entry.client.onWatchersChanged(() => void sync());
   // Initial Sync - Server may have already sent registerCapability during
-  // initialize before we subscribed.
-  sync();
+  // initialize before we subscribed. Wait for chokidar's initial scan so
+  // externally-created files are not swallowed as ignoreInitial events.
+  await sync();
 }
 
 // Forward Events - Sends a batched workspace/didChangeWatchedFiles to the